Finding the Fourth Proportional to 1,812.70, 2,500.50 and 1,066.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812.70 : 2,500.50 = 1,066.42 : x
2. Step 2: Convert to fraction form
   1,812.70/2,500.50 = 1,066.42/x
3. Step 3: Cross multiply
   1,812.70x = 2,500.50 × 1,066.42
4. Step 4: Simplify right side
   1,812.70x = 2,666,583.21
5. Step 5: Solve for x
   x = 2,666,583.21/1,812.70
6. Step 6: Final answer
   x = 1,471.06